Spring cover



L. E. PULFERY Oct. 28", 1924.

SPRING COVER `Filed March 5l, V1923 V INVENToR Zay/ e A TTORNEY PATENT oFFlcE.

' LOUIS E. PULFER, OF LOS ANGELES, CALIFORNIA.

SPRING COVER.

Application filed March 31, 1923. Serial No. 628,993.

To all whom zt may concern.'-

Be itv known that I, LOUIS E. PULFER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Spring lCovers, of which the following is a specification.

My invention relates to a protective covering and lubricating device for springs, and the main object thereof is to provide a device of this character including a metal sectional dust and dirt proof covering for a spring, comprising a plurality' of detachably pivoted sections, and embodying lubrieating means for supplying continuously a graphited oil to the spring.

Other objects and advantages will appear hereinafter, and while I show and will describe a preferred form of construction, I desire to be understood that I do not limit my invention to such preferred form, but that various chan es and adaptations may be ina/de therein without departing from the spirit of my -invention as lhereinafter claimed. i

Referring to the annexed drawing which forms a part of this specication;

Fig. 1 is a side view of my invention ap plied to a leaf spring. v

Fig. 2 lis a longitudinal sectional view of a portion of my invention.

Fig. 3 is a perspective view of one of the Sections of my invention.

Fig. 4 is -a cross sectional view of my invention in pivoted relation taken on the'line 4--4 of Fig. 1. l

Fig. 5 lis a view similar to Fig. 4 in the -act of pivotal disengagement of two of the sections.

Figs. 6, 7 and 8 are fragmentary bottom plan views of m invention showing respectively three di erent forms of connecting elements.

My invention includes a metal covering 1, an oil container 2, a capillary pad 3 and a lower closing plate 4. The casing 1 is comsed of a plurality of successively telescop lng sections 5. Each section is made of 'a single sheet of metal bent longitudinally into square taperin tubular form, to enclose a portion of a lea \spring 6, the inturned 'lower longitudinal edges of the section bein spaced a short distance apart leaving a split in the bottom of the section, and are formed with dependin longitudinal flanges 7 respectively, which anges are detachably connected by connecting elements 8 to hold the section closely around the spring and to limit the outward expansion of the section.

Each section except the outermost end section is provided near its outer end in its side walls with oppositely disposed pivot bearing openings 9. The rear ends of the side walls of each section, except the innermost end section, are rounded in the form of knuckles 10 from the center and outer side of which knuckles extend pivots 11. The rear end of each section, except the innermost end section, telescopes into any adjoining section and its pivots 1l are detachably expanded with the side walls of said section into the pivot lbearing openings 9 of said adjoining section, whereby the sections are detachably and telescopically pivoted together at their ends over the spring 6. The upper "wall of each section, except the innermost end section, is formed withv an vextension 12' which extends under the outer end of the upper wall of an adjoining section to form good joints between the upper walls of the connected sections, so that the oil from the pad 3, which is placed on top of the spring 6 under said upper walls, will not leak out through said joints. v

The outermost end section is provided in its upper wall near its forward end with a threaded opening 13, in which is screwed the lower threaded end of the oil containers 2 which supplies oil to the lower outer end of the pad 3, which oil feeds up along the pad its entire length by capillary action and lubricates the spring 6. The plate 4 rests under the spring 6 upon the lower wallsiof the cover sections 5 and closes the longitudinal space in the bottom of the sections begtween the flanges 7 thus enabling the cover 1 to enclose the spring completely. The connecting elements 8 may comprise links 15 as shown in Fig. 6 or they may comprise springs 16 or pins 17 as shown in Figs. 7 and 8 respectively.-

The 'sections 5 may be pivotally and teleico scopically connected together by compress-A f ing the lower part of the side walls thereof towards each other so that-the rear ends of each section except the innermost end section, may be telescoped within the forward end of the adjoining sections and .then by releasing said sidewall so that theywill expand outwardly' and expand the pivots 11 into the pivotbearing openings 9.

Conversely said sections may be' discon-v l,

'i nected by compressing their side walls'and withdrawingj said pivots from said openings and then pulling the sections apart, as shown in Fig. 5 of the drawings. v `What I claim is: n

1 In acovering and lubricating device for springs, a plurality of resilient telescoping sections split longitudinally at their lower sides, said sections being provided with pivot bearing openings in their side walls near their forward ends and with pivots on their side walls near their rear ends adapted to be expanded into said openings wlien said side walls are expanded, and connecting elements for connecting the lower split edges of said sections to holdisaid sections close around the spring.

2. In a covering and lubricating device for springs, a plurality of resilient telescoping sections, split longitudinally at their lower sides, said sections being provided y with pivot bearing openings in their side walls near their' forward ends andwith walls of said sections and closing the splits therein.

In witness that I claim the foregoing I have hereunto subscribed my name this 12th day of March, 1923.

. LOUIS E. PULFER. 

